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342 results about "Industrial pollution" patented technology
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Industrial pollution is pollution which can be directly linked with industry, in contrast to other pollution sources. This form of pollution is one of the leading causes of pollution worldwide; in the United States, for example, the Environmental Protective Agency estimates that up to 50% of the nation's pollution is caused by industry.
Solvent method high-wet-modulus bamboo fiber and preparation method thereof
ActiveCN101694019AEasy to operateReduce energy consumptionMonocomponent cellulose artificial filamentVegetable materialFiberCellulose
Owner:SHANGHAI LYOCELL FIBER DEV
Environmental-friendly heavy metal stabilizer and application method thereof
ActiveCN104004524AStable, fast and effectiveLow toxicityContaminated soil reclamationOrganic fertilisersClay mineralsHeavy metal chelation
The invention relates to the field of environmental protection and restoration and in particular relates to an environmental-friendly heavy metal stabilizer used for soil restoration of an industrial pollution site and an application method thereof. The environmental-friendly heavy metal stabilizer is prepared from the following material components in parts by weight: 40-50 parts of clay mineral, 17-24 parts of adsorbing material, 10-18 parts of heavy metal chelating agent, 4-8 parts of heavy metal precipitating agent and 10-15 parts of alkaline modifier. Main ingredients of the adopted stabilizer are natural materials, heavy metal pollutant in soil can be rapidly and effectively stabilized through composite action such as chelating, precipitation and adsorption; the heavy metal pollutant is stabilized for a long time, toxicity and biological availability of the heavy metal pollutant can be reduced, risk of the heavy metal polluted soil to the environment and human health is reduced, and the heavy metal polluted soil is restored; besides, a soil texture improving ingredient is contained, so that soil is restored while tillability of the soil is improved.
Owner:JIANGSU SUNTIME ENVIRONMENTAL REMEDIATION
Aflatoxin degradation method
The invention discloses a method for degrading aflatoxin, which makes use of gamma rays to irradiate a sample containing the aflatoxin, wherein the gamma rays are generated by a radioactive substance Co, and the irradiation dose is between 0 and 10 kGy not including 0, preferably between 2 and 10 kGy, more preferably between 4 and 10 kGy, particularly preferably between 6 and 10 kGy, and the most preferably 10 kGy. The sample containing the aflatoxin is a farm product containing the aflatoxin or a product obtained by processing the farm product, such as food, feedstuff, and the like. The method is particularly applicable to degrading the aflatoxin B1, not only can kill pathogenic microorganisms but also can degrade biotoxin therein, and does not generate any industrial pollution.
Owner:INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
Real-time monitoring and dynamic management information platform for major industrial pollution sources
The invention provides a real-time monitoring and dynamic management information platform for major industrial pollution sources in certain regions, and relates to the field of environmental management information technologies. The real-time monitoring and dynamic management information platform comprises foundation hardware, a system platform and a comprehensive database. The foundation hardware comprises a GIS (geographic information system) server, a data server, an application server, a network communication link and the like. The system platform which is an information platform comprises platform software and a functional module, and pollution source real-time monitoring, pollution source dynamic management, pollutant statistical analysis and auxiliary decision making modules and the like are developed by the functional module. The comprehensive database comprises a spatial database and attribute databases. The real-time monitoring and dynamic management information platform has the advantages that the major industrial pollution sources in the certain regions can be scientifically and effectively dynamically monitored and managed in full life cycles by the aid of the information platform, scientific bases can be provided for environmental management such as comprehensive management, emergency treatment, analytic decision making and law enforcement monitoring and management, and the widespread problems of deficiency of data sharing and compatibility, poor utilization rate, weak spatial analysis functions and the like of existing environmental information management systems can be solved.
Owner:阿克苏地区环境保护局
High performance wallpaper base paper pulp and process for producing wallpaper base paper using the same
InactiveCN101435169ASolve layeringSolve the bubble point problemNatural cellulose pulp/paperWater-repelling agents additionForest industryState of art
The invention discloses a high-performance wallpaper base paper pulp and a process which uses the pulp to produce wallpaper base paper, the base paper pulp is formed by sizing agent and accessory, the sizing agent is formed by the combination of coniferous bleaching chemical wood pulp, latifoliate bleaching chemical wood pulp and coniferous bleaching chemical thermomechanical pulp; and the accessory is formed by the combination of intra-pulp starch, filling, intra-pulp sizing agent, surface sizing agent, wet strength agent and retention aid. By adopting the invention, bubble points generated by the wallpaper base paper in the PVC scratching and painting process can be greatly reduced, and the bonding strength between a PVC coating and the paper surface and the stability of the paper in wet deformation are improved, thus overcoming the shortcoming of the prior art, simultaneously, reducing the production cost and industrial pollution of the wallpaper base paper. The wallpaper base paper produced by the process has high dry and wet strength, good dimension stability, good loose depth, high opacity, and difficult yellowing. The used sizing agent is mainly high-yield APMP, forest resources are saved, pollution load is low, and the invention has better generalization significant to the current situation that the cost of domestic current paper making industry remains high, forest resources are lacked, and the pollution of paper making industry is severe.
Owner:ZHEJIANG WINBON SPECIALTY PAPER +1
Evaluation Method of Corrosion Condition of Steel-cored Aluminum Stranded Aerial Conductor
InactiveCN102279148AWeather/light/corrosion resistanceMaterial resistanceSodium bisulfiteLaboratory test
The invention discloses a method for evaluating the corrosion status of steel-cored aluminum strand overhead conductors, which includes: (1) sodium chloride and sodium bisulfite+sodium chloride solution used to simulate corrosion conditions in coastal areas and industrial pollution areas (2) Laboratory accelerated corrosion test of unserviced ACSR overhead conductors; (3) Test of tensile strength and electrical conductivity of the inner and outer aluminum strands of corroded conductors to obtain the performance of overhead conductors under given conditions Changes with corrosion time; (4) Tensile strength and electrical conductivity tests of the inner and outer layers of aluminum strands of steel-reinforced aluminum stranded aerial conductors that have served in seaside and industrial polluted areas for different periods of time. Under certain conditions, the relationship between the performance and the corrosion time is simulated to simulate the relationship between the corrosion status and the service time of the actual service wire; Analyze the stranded overhead wires, evaluate the corrosion state and the remaining service life of the wires, and propose a treatment plan for the wires in service.
Owner:ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER +1
In-situ electric heating desorption restoration technology and device for contaminated site
ActiveCN105834205AOutstanding and Beneficial Technical EffectsNo emissionsContaminated soil reclamationDesorptionEngineering
Owner:SHANGHAI GREENMENT ENVIRONMENTAL TECH CO L
Heavy metal stabilizer for treating industrial contaminated place soil, and use method thereof
InactiveCN107541214AReliable long-term stabilityNo secondary pollutionContaminated soil reclamationOrganic fertilisersDiethyl dithiocarbamatePhosphate
The invention relates to a heavy metal stabilizer for treating industrially polluted soil and a method for using the heavy metal stabilizer. The heavy metal stabilizer consists of phosphate, inorganic Composition of alkaline substances and adsorbents. The method of use includes: fully stirring and mixing phosphate, inorganic alkaline substances and adsorbents in proportion, and then adding them to the soil of industrially polluted sites for conservation. The invention does not contain any organic chelating agent such as dithiocarbamate or sulfide, has no secondary pollution and pollution-free; the method of use is simple, the cost is low, and it meets the benefits of energy saving and carbon reduction, economic benefits, and has good application prospects.
Owner:李杰
Insulator electrified cleaning agent
InactiveCN105296244AImprove insulation performanceHigh insulation valueSurface-active non-soap compounds and soap mixture detergentsCleansing AgentsStain
An insulator electrified cleaning agent is composed of, by weight, 60-90 parts of a solvent dimethyl carbonate, 15-30 parts of a cosolvent ethylene glycol derivative, 5-10 parts of a nonionic surfactant, 2-5 parts of an abrasive agent nanocrystalline metal oxide, 1-5 parts of a diffusant dichloromethane, 0.5-2 parts of a washing aid N-alkyl pyrrolidone, 0.2-1 part of a stabilizing agent cocomut oil die thanolamide and 1-3 parts of polymethyl siloxane. The cleaning agent can effectively remove stains on the surface of an insulator anti-pollution flashover coating in a high saline and sodic environment with high industrial pollution and recover excellent hydrophobicity and hydrophobic migration of the insulator surface. Thus, the cleaning agent has the capability of effectively guaranteeing safe operation of electrical equipment.
Owner:杨超
Method for producing mycoprotein and polypeptide organic fertilizer by fermented waste of vitamin C
InactiveCN101747093ALow costImprove utilizationClimate change adaptationBioloigcal waste fertilisersMycoproteinHand parts
The invention relates to a method for producing mycoprotein and polypeptide organic fertilizer by waste fermented mash and gulonic acid mother solution formed in the vitamin C production technology, which belongs to the field of biotechnology and waste resource utilization technology, and comprises the following steps: adding 5 to 20 parts of gulonic acid mother solution in 100 parts of waste vitamin C fermented mash protein, adjusting pH value to 2.0 to 5.0, and hydrolyzing for 0.5 to 12 hours under the temperature of 40 to 70 DEG C. On the one hand part of protein in fermented mash protein is hydrolyzed to become polypeptide and amino acid to dissolve in water, through adjusting pH value and appropriate concentration, right amount of trace element is added, obtaining polypeptide organic fertilizer, on the other hand the rest protein in mash protein is precipitated, and the precipitated protein is made into mycoprotein through filter-pressing, drying and smashing. The invention recycles the vitamin C fermentation industry waste to produce mycoprotein and polypeptide organic fertilizer, thus not only solving the problem of industrial pollution, but also providing organic fertilizer and feed protein for agricultural production.
Owner:北京卓普元创科技有限公司
Method for extracting sialic acid from bird nests by means of crystallization
InactiveCN104072544ASimplified extraction stepsAvoid introducingSugar derivativesSaccharide compounds with non-saccharide radicalsFreeze-dryingHigh pressure
The invention discloses a method for extracting sialic acid from bird nests by means of crystallization. The method comprises the steps of soaking the bird nests with deionized water and removing impurities; then pulping and crushing, heating under a high pressure, centrifuging, drying, dissolving and crystallizing to obtain the sialic acid. According to the method disclosed by the invention, hydrolysis of the glycoproteins of the bird nests is accelerated through serious heating by means of high-pressure heating, and the combined-state sialic acid is converted to a free-state sialic acid; the high-pressure heating avoids the introduction of other ingredients, thereby simplifying the subsequent separation and purification steps; the sialic acid crude product obtained by freeze-drying is prepared into alcohol-saturated solution by virtue of the property that the sialic acid is slightly dissolved in alcohol but proteins and polysaccharides are insoluble in alcohol, and therefore on one hand, the impurities such as alcohol-insoluble proteins and polysaccharides are removed, on the other hand, the solvent polarity is changed by adding a non-polar solvent, and sialic acid crystals are obtained according to the different seperation sequences of the sialic acid and the impurities. According to the method disclosed by the invention, sialic acid extraction steps are simplified, and industrial pollution is reduced.
Owner:南京极燕食品有限公司
Method and apparatus for removing sulfur components
InactiveUS20050022668A1Human health protectionInternal combustion piston enginesSulfurEnvironmental engineering
In the fields of environmental and industrial pollution control there is a need for improvements in the removal of fine particulates, especially of sizes in the sub-micron ranges, from gas streams. The disclosure relates to an apparatus including a container for a liquid submerged in which in some embodiments, is a pipe transporting a particulate-containing gas. The pipe permits passage of the gas through the liquid before it exhausts from the container. The liquid is such as to wet the particulates, thereby retaining them in the liquid while the gas passes through the liquid to the exhaust.
Owner:UNIV COURT OF THE UNIV OF DUNDEE
Drainage network pollutant emission tracing method and device
The invention relates to a drainage network pollutant emission tracing method and device. The device comprises water quality monitoring modules, power supply devices, signal transmitting systems, a cloud service platform, and a mobile terminal; a plurality of water quality monitoring modules are respectively arranged at all monitoring points of the drainage network, a plurality of power supply devices are arranged, respectively connected with the corresponding water quality monitoring modules and used for supplying power for the corresponding water quality monitoring modules; a plurality of signal transmitting systems are arranged, connected with the corresponding water quality monitoring modules and used for sending data collected by the water quality monitoring modules to the outside; the cloud service platform is connected with the signal transmitting systems and is used for receiving the data collected by the water quality monitoring modules and processing the data to obtain an early warning value, performing tracing in combination with the position information of the water quality monitoring modules when the early warning value is exceeded, and giving an alarm in time; and themobile terminal is connected with the cloud service platform and used for receiving alarm information and water quality information. Compared with the prior art, the method and the device have the advantages that multi-node and multi-parameter real-time monitoring can be realized and the early warning can be carried out, so that pollutant emission of the industrial pollution source drainage network can be conveniently traced.
Owner:TONGJI UNIV
Production technology of chinensis tea machining
InactiveCN101731375APay attention to health care functionFragrant tastePre-extraction tea treatmentTea substituesEmeraldEngineering
The invention discloses a production technology of chinensis tea machining, which is a novel technology for carrying out machining manufacture on chinensis by depending on the manufacture principle of tea leaves and adopting a machining technology. A finished chinensis tea is prepared by processing steps of choiceness, cleaning, dehydration, spreading, deactivating enzymes, rolling, block seperating, cutting up, drying, roasting and the like. The chinensis tea has the characteristics of three green and one high of green teas and the advantages of tight, strong and thin stripes, beauty, emerald color, verdure in tea soup, pure and lofty fragrance and fresh taste and has both favorable drinking effect and health function. The invention has purely natural raw materials, no residue of chemical pesticides, non industrial pollution, wide source and high scientific and technical content of the processing technology and provides a new and special natural drink with favorable health effect to daily health care and leisure entertainment of people.
Owner:吴大春 +1
Automatic monitoring device for industrial pollution and monitoring method
InactiveCN109521162AContact stabilityEnsure stabilityPhotovoltaic supportsSolar heating energyEngineeringMonitor equipment
The invention discloses an automatic monitoring device for industrial pollution and a monitoring method. The automatic monitoring device comprises a chassis, a driving chamber, a detection chamber, asolar mechanism, a gas collection pipeline, an air detection mechanism, a stop rod, a stop block and a latch; a separating plate is arranged on the upper side in the chassis; the driving chamber is arranged on the upper end of the separating plate; the detection chamber is arranged on the lower end of the separating plate; a driving gear and a driven gear are driven by a first motor to mesh and drive, so that a rotating shaft can be rotated for driving the solar mechanism to adjust the horizontal angle and align with sunlight; a screw rod is driven to rotate by a second motor, so that a slideblock horizontally moves along the screw rod, so as to support a photovoltaic panel by a connecting rod; the photovoltaic panel is rotated in a fan-shaped manner around a first support rod, so that the photovoltaic panel can be adjusted for aligning with sunlight; due to the arrangement of the structure, solar energy can be extremely converted into electric power by the photovoltaic panel, so as to supply electric power to the device; long-time running of the device can be guaranteed; the automatic monitoring device is energy-saving and environment-friendly.
Owner:清远长天思源环保科技有限公司
Two-direction pre-tensioned prestressing ballastless track slab movable tensioning equipment
ActiveCN105643792ASimple structureIncrease stiffnessCeramic shaping apparatusPre stressElectric machinery
Two-direction pre-tensioned prestressing ballastless track slab movable tensioning equipment comprises a side pre-locking beam, a side tensioning beam, an end pre-locking beam and an end tensioning beam; the side pre-locking beam and the side tensioning beam are assembled on two walking beams through a pair of side beam linear guide rails, and each walking beam is provided with wheels matched with a running rail, walking guide wheel sets, a wheel speed reduction motor and side beam advancing and retreating oil cylinders; portal frames are arranged at the two ends of the walking beams, and a lifting frame, a lifting frame lifting oil cylinder and a lifting frame lifting guide device are assembled on each portal frame; and the end pre-locking beam and the end tensioning beam are assembled on the lower faces of the lifting frames through a pair of end beam linear guide rails, and end beam advancing and retreating oil cylinders are arranged on the lifting frames. According to the equipment, the production preparation period can be effectively shortened, the engineering construction cost is reduced, industrial pollutions are avoided, and meanwhile a steel mold fixed mounting production manner facilitates simplifying of a mold structure, reduction of cost, improvement of precision and reduction of occupied areas and working energy consumption of production equipment.
Owner:秦皇岛老虎重工有限公司
Air cleaner
InactiveCN102029096AImprove cleanlinessImprove filtering effectCombination devicesMechanical apparatusFiberHigh concentration
The invention relates to an air cleaner which comprises a longitudinal shell relative to the ground. An air inlet is arranged on the bottom of the shell, and an air outlet is arranged on the top of the shell. Air is sucked in through the lower air inlet by means of a fan arranged below the shell, and the air flows upward through a longitudinal air duct in the longitudinal shell and is blown out through the upper air outlet. After the air is blown out through the air outlet, the air is continuously blown upward to a certain height, and the air flow traction action is formed because the air spreads and declines around the shell as a center and then the air is continuously sucked in through the lower air inlet by means of the fan. Automobile exhaust gas, tiny dust particles, hair, fiber and various industrial pollution harmful smokes and other impurities falling due to gravity or floating due to high concentration to get near to ground, desk top or table top, are absorbed by low air pressure below the shell and sucked into the shell and are filtered out by a replaceable filtering unit arranged in the shell, thus the effect of improving the cleanness of air is further achieved.
Owner:吴福吉
A kind of removal method of benzopyrene in edible oil
InactiveCN102260591ANo impact on qualityNo lossFatty-oils/fats refiningEdible oils/fatsBiotechnologyEngineering
The invention discloses a method for removing benzopyrene from edible oil, and belongs to the technical field of edible oil safety technology. The method of the present invention is to use the composite nanomaterial film coated with TiO2-ZnO to process the edible oil, preferably under ultraviolet radiation, at 0-35 DEG C for 30-180 minutes, so that more than 80% of the benzopyrene in the edible oil can be degraded. The nano-material does not come into direct contact with the edible oil, and can degrade the harmful component benzopyrene, and will not have any other components remaining in the edible oil, which will not affect the quality of the edible oil, nor will it cause damage to the edible oil. It is a new method that is practical and convenient for industrial application, without any loss or production of industrial pollution.
Owner:SOUTH CHINA AGRI UNIV
Industrial pollution whole process cooperative monitoring system and monitoring method adopting same
InactiveCN102645916AGuaranteed accuracyEnergy industryTotal factory controlProcess optimizationMonitoring system
The invention provides an industrial pollution whole process cooperative monitoring system and a monitoring method adopting the industrial pollution whole process cooperative monitoring system. A device comprises a pollution source on-line monitoring sub system, a work condition on-line monitoring sub system and a data comprehensive analysis processing sub system, wherein the pollution source on-line monitoring sub system and the work condition on-line monitoring sub system are respectively connected with the data comprehensive analysis processing sub system through a wire network and / or a wireless network. The monitoring system has the advantage that the obtained monitoring data is comprehensive, through the comprehensive study and judgment on the pollution source on-line monitoring data and the work condition on-line monitoring data, the reliability of pollution source on-line monitoring data is ensured, the scientific basis is provided for the total pollution discharge quantity checking, and meanwhile, the reference basis is also provided for enterprises to realize energy saving and emission reduction goals through process optimization.
Owner:MAPUNI TECH CO LTD
Synthetic method for preparing retanning agent of modified starch for leather
This is the method of preparing the modified starch-based retanning agent of leather. It oxidates and decomposes the starch, then react with vinyl monomer to polymerize. This retannage is used to leather cure of retanning, after retanning the leather feels soft and comfortable, exquisite surface, color uniformity, augment ply efficiently, no color withdraw. This chrome tanning can be used before retanning, and it can increase the absorption of the augmet, and decrease the quantity of chrome in the waste solution. The modified starch-based retanning agent of leather is a product valuable to environment protection, and has a significant mean of decreasing industrial pollution.
Owner:SHAANXI UNIV OF SCI & TECH
High-strength ceramsite containing contaminated soil, and preparation method of high-strength ceramsite
InactiveCN107663099AReduce leachingRealize harmless solid wasteCeramic materials productionCeramicwareExpanded clay aggregateWaste treatment
The invention discloses high-strength ceramsite containing contaminated soil, and a preparation method of the high-strength ceramsite. The high-strength ceramsite is prepared from the following main raw materials: coal ash, the contaminated soil and bentonite; the preparation method comprises the steps of mixing the raw materials according to a proportion, granulating, drying, roasting, and cooling to obtain the high-strength ceramsite containing the contaminated soil. The high-strength ceramsite is produced by utilizing the coal ash, which is a by-product of local thermal power plants, and the industrial contaminated soil, so that the problem of local solid waste treatment is solved; the obtained high-strength ceramsite containing the contaminated soil is high in physical strength, good in chemical stability, low in stacking density and large in specific surface area and can be used for the fields such as building, water treatment and landscape art, and the production cost of the ceramsite is reduced; therefore, the high-strength ceramsite containing the contaminated soil has a good market prospect.
Owner:CHAMBROAD CHEM IND RES INST CO LTD
Method for extracting lithium chloride from high lithium salt lake brine
The invention relates to the chemical engineering field of inorganic salt and discloses a method for extracting lithium chloride from high lithium salt lake brine. The method disclosed by the invention comprises: adding inorganic salt into salt lake brine to remove calcium and magnesium ions and boron ions; adding a chelating agent to remove trace calcium and magnesium ions; and carrying out spray-drying treatment to obtain lithium chloride solid grains. By adopting inorganic acid and alkali to remove impurities, the production cost is lowered and the industrial pollution is reduced; the lithium chloride product obtained by spray-drying treatment is uniform in grain size, less in agglomeration and high in purity.
Owner:韦海棉
Analysis method of mancozeb
The invention discloses an analysis method of mancozeb. The method comprises the following steps of: using a high efficiency liquid chromatography, taking mixing solution of methanol and buffer solution as a mobile phase by adopting a C18 chromatographic column; carrying out detection at proper flow velocity, column temperature and detection wavelength; and analyzing the content of the mancozeb. The analysis method disclosed by the invention is simple, convenient, fast, high in accuracy, and good in precision; a reagent can be saved; and industrial pollution also can be reduced.
Owner:利民化学有限责任公司
High-purity calcobutrol preparing method
The invention provides a high-purity calcobutrol preparing method. Gadolinium ions are extracted from gadobutrol which serves as a starting material under the action of acid, and filtration is conducted; a calcium preparation is added to filtrate, then refluxing reaction is conducted to generate calcobutrol, and excessive calcium carbonate and the byproduct calcium oxalate are filtered out; a nucleation agent is added to obtained calcobutrol solution, and heating, refluxing, crystallization and then filtration are conducted, so that high-purity calcobutrol is obtained. By the adoption of the method, the obtained product is highly pure, the method is simple, purification is easy, and industrial pollution rate is low.
Owner:HARVEST PHARMA HUNAN CO LTD
Sulphoaluminate cement clinker producing process with industrial waste
The present invention belongs to a improvement of sulphoaluminated cement producting process, especially to utilize industrial waste in sulphoaluminate cement clinker producing process. The technological scheme of the present invention includes utilizing ardealite to replace expensive natural gypsum, using iron powder or iron ore powder as stuffing in compounding raw material, and incineration toproduce required sulphaluminate cement clinker. The present invention lays foundation for producing high quality and cheap sulphaluminate cement and eliminating industrial pollution.
Owner:张振秋
Process for recycling waste toothpaste aluminum-plastic composite packaging material
InactiveCN102151686AImprove the efficiency of the separation reactionReduce energy consumptionSolid waste disposalToothpasteProcess conditions
The invention discloses a process for recycling waste toothpaste aluminum-plastic composite packaging material. The process is characterized by comprising the following steps: (1) treating crushed materials; (2) separating aluminum and plastics; (3) granulating plastics and producing a finished product; and (4) producing aluminum-silver powder. In the process, the toothpaste aluminum-plastic composite packaging material is used as a raw material, and reagents are all non-toxic, therefore the high-quality polyethylene plastic product and aluminum powder can be produced; and the whole process for recycling the waste toothpaste aluminum-plastic composite packaging material does not generate any industrial pollution. The process is simple to operate and environmentally friendly and has the characteristics of low cost, high benefit, no toxicity, low process condition requirement and the like.
Owner:MILUO TONGYI RENEWABLE RESOURCES TREATMENT
Nontoxic process for extraction gold from gold-bearing tailing
InactiveCN101363081ANon-toxicNo industrial pollutionProcess efficiency improvementSorbentMaterials science
The invention related to a beneficiation method, in particular to a beneficiation method of high bismuth and poly-metal intergrowth gold ores or accompanying gold ores, specifically, a non-toxic extraction method of gold from gold-containing tailings is referred. An organic chemical reagent is taken as a leaching agent, metal oxide and air are taken as activators, acid or alkali is taken as a regulator, cation exchange resin is taken as an adsorbent, and nonferrous metal is taken as a displacer. The gold is separated out by the displacer or is adsorbed by the cation exchange resin to obtain gold concentrate, the immersion fluid is pressed and filtered for separating the residue and the liquid, the immersion fluid without the residue can be recovered and reused. The agents used in the method are non-toxic and has no harm to human body. The method does not produce industrial pollution and has low recovery cost and high recovery rate.
Owner:JILIN UNIV
Corner fitting for container, container and container-type movable house
InactiveCN104176396ARapid productionReduce consumptionLarge containersBuilding constructionsTransportation energyAlloy
The invention discloses a corner fitting for a container, the container and a container-type movable house. A main body of the corner fitting for the container is cuboid-shaped; mounting through holes are formed in three outer end surfaces of the main body facing the outer side of the container, and the other three end surfaces of the main body can be fixedly connected with a side beam, an upright column and an end beam of the container respectively; a connecting boss is arranged on at least one end surface in the three end surfaces connected with the side beam, the upright column and the end beam of the container, can be connected with a matched beam column of the container in an insertion manner, and can be fixedly connected with the beam column of the container. According to the container and the container-type movable house with the corner fitting structure, a conventional welded structural part connecting mode can be replaced with a bond-riveted mode, the labor difficulty of a connecting process is reduced, the work efficiency is improved, and industrial pollution and energy consumption are reduced; meanwhile, a light aluminum alloy can be adopted as a base material of the container, and therefore the transportation energy consumption and the transportation cost are greatly reduced.
Owner:邵妮
Preparation method of glucolactone
InactiveCN102367244AShorten the production cycleNo industrial pollutionOrganic chemistryCatalytic oxidationReaction temperature
The invention discloses a preparation method of glucolactone. The method comprises the following steps of: dissolving glucose into deionized water to obtain a glucose solution as a raw material, illuminating the glucose solution by using an ultraviolet lamp, additionally providing an air pump in a reaction device to accelerate a mass transferring process, adding hydrogen peroxide in the reaction process, undergoing a catalytic oxidation reaction under a stirring condition at a temperature of 20-60 DEG C for 1-4h and filtering to obtain a glucose acid solution; carrying out reduced-pressure concentration on the glucose acid solution at 70-80 DEG C and concentrating to form 70-90% of crystallization solution; adding seed crystals into a concentrated solution and placing in a crystallizationstirrer for crystallization to obtain a glucolactone product. The preparation method of the glucolactone has the advantages of not only shortening the production period and not causing industrial pollution, but also reducing production cost, realizing low energy consumption and high yield and being suitable or industrial production.
Owner:JINAN UNIVERSITY
Method for extracting lychee seed flavonoids via ionic liquid
InactiveCN104547202AIncrease profitHigh extraction rateDigestive systemAntinoxious agentsSlurryAdemetionine
The invention relates to a method for extracting lychee seed flavonoids via an ionic liquid, and belongs to the field of deep processing of litchis seeds. The deep processing craft of the lychee seeds comprises the following steps: weighing 50-100 parts of lychee seeds, pulping the lychee seeds at minus 30 to minus 10 DEG C by using a low temperature liquid nitrogen pulping technology to obtain lychee seed slurry, in order to effectively prevent the volatilization loss of the active ingredients of the lychee seeds, uniformly mixing the lychee seed slurry with 20-40 parts of 1-caproyl-3-methylimidazolium hexafluorophospate, putting the mixture in an extracting bottle, extracting flavonoids at microwave power of 100-500 W and a temperature of 100-170 DEG C, carrying out condensation recovering the flavonoids extracting solution for 30-50 minutes by using an extractor, drying the flavonoids extracting solution by using anhydrous sodium sulfate, and sealing and carrying out cold storage the flavonoids extracting solution at 0-5 DEG C. The extraction rate of the extraction method is high, and the extraction medium, namely the ionic liquid can be recycled, thereby being environment-friendly, pollution-free and suitable for industrial pollution, and moreover, the lychee seed wastes are comprehensively utilized to improve the utilization rate of leftovers.
Owner:HUIZHOU UNIV +1
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